/**
 * Created by mooshroom on 2016/1/21.
 */
define('uploader', [
    'avalon',
    'jquery',
    'text!../../lib/uploader/uploader.html',
    'css!../../lib/uploader/uploader.css',
    '../../lib/uploader/webuploader.js'
], function (avalon, $, html, css) {
    avalon.component('tsy:uploader', {
        $template: html,
        id: "",
        show: false,
        //上传工具设置
        boxID: 'uploader',//最外面的div的ID
        dnd: "dndArea",
        filePicker: "filePicker",
        label: "点击选择图片",//上传按钮的名字
        filePicker2: "filePicker2",
        tip: "或者将文件拖到这里,最多支持300个文件",
        $conf: {
            pick: {
                id: '',
                label: ''
            },
            formData: {
                uid: 123
            },
            dnd: '',
            paste: '',
            swf: './lib/uploader/uploader.swf',
            chunked: false,
            chunkSize: 512 * 1024,
            server: apiURL + 'File/File/upload&tsy=' + cache.go("tsy"),

            //下面这个如果不注释就会影响整个上传工具
//                                runtimeOrder: 'flash',

            accept: {
                title: 'Images',
                extensions: 'jpg,jpeg,bmp,png',
                mimeTypes: 'image/*'
            },

            // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
            disableGlobalDnd: true,
            fileNumLimit: 1,
            fileSizeLimit: 200 * 1024 * 1024,    // 200 M
            fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M
        },

        //返回的图片
        images: [],

        //成功之后的额外回调
        success: function (file, res) {

        },
        //构建上传工具
        build: function () {
        },

        $init: function (vm, elem) {
            if (vm.id != "") {
                window[vm.id] = vm
            }

            avalon.mix(vm.$conf, {
                dnd: '#' + vm.dnd,
                paste: '#' + vm.boxID,
                pick: {
                    id: '#' + vm.filePicker,
                    label: vm.label
                },
            })

            vm.build = function () {
                setTimeout(function () {
                    $(function () {
                        var $wrap = $('#' + vm.boxID),

                        // 图片容器
                            $queue = $('<ul class="filelist"></ul>')
                                .appendTo($wrap.find('.queueList')),

                        // 状态栏，包括进度和控制按钮
                            $statusBar = $wrap.find('.statusBar'),

                        // 文件总体选择信息。
                            $info = $statusBar.find('.info'),

                        // 上传按钮
                            $upload = $wrap.find('.uploadBtn'),

                        // 没选择文件之前的内容。
                            $placeHolder = $wrap.find('.placeholder'),

                            $progress = $statusBar.find('.progress').hide(),

                        // 添加的文件数量
                            fileCount = 0,

                        // 添加的文件总大小
                            fileSize = 0,

                        // 优化retina, 在retina下这个值是2
                            ratio = window.devicePixelRatio || 1,

                        // 缩略图大小
                            thumbnailWidth = 110 * ratio,
                            thumbnailHeight = 110 * ratio,

                        // 可能有pedding, ready, uploading, confirm, done.
                            state = 'pedding',

                        // 所有文件的进度信息，key为file id
                            percentages = {},
                        // 判断浏览器是否支持图片的base64
                            isSupportBase64 = (function () {
                                var data = new Image();
                                var support = true;
                                data.onload = data.onerror = function () {
                                    if (this.width != 1 || this.height != 1) {
                                        support = false;
                                    }
                                }
                                data.src = "";
                                return support;
                            })(),

                        // 检测是否已经安装flash，检测flash的版本
                            flashVersion = (function () {
                                var version;

                                try {
                                    version = navigator.plugins['Shockwave Flash'];
                                    version = version.description;
                                } catch (ex) {
                                    try {
                                        version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
                                            .GetVariable('$version');
                                    } catch (ex2) {
                                        version = '0.0';
                                    }
                                }
                                version = version.match(/\d+/g);
                                return parseFloat(version[0] + '.' + version[1], 10);
                            })(),

                            supportTransition = (function () {
                                var s = document.createElement('p').style,
                                    r = 'transition' in s ||
                                        'WebkitTransition' in s ||
                                        'MozTransition' in s ||
                                        'msTransition' in s ||
                                        'OTransition' in s;
                                s = null;
                                return r;
                            })(),

                        // WebUploader实例
                            uploader;

                        if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {

                            // flash 安装了但是版本过低。
                            if (flashVersion) {
                                (function (container) {
                                    window['expressinstallcallback'] = function (state) {
                                        switch (state) {
                                            case 'Download.Cancelled':
                                                alert('您取消了更新！')
                                                break;

                                            case 'Download.Failed':
                                                alert('安装失败')
                                                break;

                                            default:
                                                alert('安装已成功，请刷新！');
                                                break;
                                        }
                                        delete window['expressinstallcallback'];
                                    };

                                    var swf = './expressInstall.swf';
                                    // insert flash object
                                    var html = '<object type="application/' +
                                        'x-shockwave-flash" data="' + swf + '" ';

                                    if (WebUploader.browser.ie) {
                                        html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                                    }

                                    html += 'width="100%" height="100%" style="outline:0">' +
                                        '<param name="movie" value="' + swf + '" />' +
                                        '<param name="wmode" value="transparent" />' +
                                        '<param name="allowscriptaccess" value="always" />' +
                                        '</object>';

                                    container.html(html);

                                })($wrap);

                                // 压根就没有安转。
                            } else {
                                $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
                            }

                            return;
                        } else if (!WebUploader.Uploader.support()) {
                            alert('Web Uploader 不支持您的浏览器！');
                            return;
                        }

                        // 实例化
                        uploader = WebUploader.create(vm.$conf);

                        // 拖拽时不接受 js, txt 文件。
                        uploader.on('dndAccept', function (items) {
                            var denied = false,
                                len = items.length,
                                i = 0,
                            // 修改js类型
                                unAllowed = 'text/plain;application/javascript ';

                            for (; i < len; i++) {
                                // 如果在列表里面
                                if (~unAllowed.indexOf(items[i].type)) {
                                    denied = true;
                                    break;
                                }
                            }

                            return !denied;
                        });

                        uploader.on('dialogOpen', function () {
                            console.log('here');
                        });

                        uploader.on('filesQueued', function () {
                            uploader.sort(function (a, b) {
                                if (a.name < b.name)
                                    return -1;
                                if (a.name > b.name)
                                    return 1;
                                return 0;
                            });
                        });

                        // 添加“添加文件”的按钮，
                        uploader.addButton({
                            id: '#' + vm.filePicker2,
                            label: '继续添加'
                        });

                        uploader.on('ready', function () {
//                                window.uploader = uploader;
                            vm.show = true
                        });

                        // 当有文件添加进来时执行，负责view的创建
                        function addFile(file) {
                            var $li = $('<li id="' + file.id + '">' +
                                    '<p class="title">' + file.name + '</p>' +
                                    '<p class="imgWrap"></p>' +
                                    '<p class="progress"><span></span></p>' +
                                    '</li>'),

                                $btns = $('<div class="file-panel">' +
                                    '<span class="cancel">删除</span>' +
                                    '<span class="rotateRight">向右旋转</span>' +
                                    '<span class="rotateLeft">向左旋转</span></div>').appendTo($li),
                                $prgress = $li.find('p.progress span'),
                                $wrap = $li.find('p.imgWrap'),
                                $info = $('<p class="error"></p>'),

                                showError = function (code) {
                                    switch (code) {
                                        case 'exceed_size':
                                            text = '文件大小超出';
                                            break;

                                        case 'interrupt':
                                            text = '上传暂停';
                                            break;

                                        default:
                                            text = '上传失败，请重试';
                                            break;
                                    }

                                    $info.text(text).appendTo($li);
                                };

                            if (file.getStatus() === 'invalid') {
                                showError(file.statusText);
                            } else {
                                // @todo lazyload
                                $wrap.text('预览中');
                                uploader.makeThumb(file, function (error, src) {
                                    var img;

                                    if (error) {
                                        $wrap.text('不能预览');
                                        return;
                                    }

                                    if (isSupportBase64) {
                                        img = $('<img src="' + src + '">');
                                        $wrap.empty().append(img);
                                    } else {
                                        $.ajax('../../server/preview.php', {
                                            method: 'POST',
                                            data: src,
                                            dataType: 'json'
                                        }).done(function (response) {
                                            if (response.result) {
                                                img = $('<img src="' + response.result + '">');
                                                $wrap.empty().append(img);
                                            } else {
                                                $wrap.text("预览出错");
                                            }
                                        });
                                    }
                                }, thumbnailWidth, thumbnailHeight);

                                percentages[file.id] = [file.size, 0];
                                file.rotation = 0;
                            }

                            file.on('statuschange', function (cur, prev) {
                                if (prev === 'progress') {
                                    $prgress.hide().width(0);
                                } else if (prev === 'queued') {
                                    $li.off('mouseenter mouseleave');
                                    $btns.remove();
                                }

                                // 成功
                                if (cur === 'error' || cur === 'invalid') {
                                    console.log(file.statusText);
                                    showError(file.statusText);
                                    percentages[file.id][1] = 1;
                                } else if (cur === 'interrupt') {
                                    showError('interrupt');
                                } else if (cur === 'queued') {
                                    percentages[file.id][1] = 0;
                                } else if (cur === 'progress') {
                                    $info.remove();
                                    $prgress.css('display', 'block');
                                } else if (cur === 'complete') {
                                    $li.find('.progress').hide();
                                    $li.append('<span class="success"></span>');
                                }

                                $li.removeClass('state-' + prev).addClass('state-' + cur);
                            });

                            $li.on('mouseenter', function () {
                                $btns.stop().animate({height: 30});
                            });

                            $li.on('mouseleave', function () {
                                $btns.stop().animate({height: 0});
                            });

                            $btns.on('click', 'span', function () {
                                var index = $(this).index(),
                                    deg;

                                switch (index) {
                                    case 0:
                                        uploader.removeFile(file);
                                        return;

                                    case 1:
                                        file.rotation += 90;
                                        break;

                                    case 2:
                                        file.rotation -= 90;
                                        break;
                                }

                                if (supportTransition) {
                                    deg = 'rotate(' + file.rotation + 'deg)';
                                    $wrap.css({
                                        '-webkit-transform': deg,
                                        '-mos-transform': deg,
                                        '-o-transform': deg,
                                        'transform': deg
                                    });
                                } else {
                                    $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
                                    // use jquery animate to rotation
                                    // $({
                                    //     rotation: rotation
                                    // }).animate({
                                    //     rotation: file.rotation
                                    // }, {
                                    //     easing: 'linear',
                                    //     step: function( now ) {
                                    //         now = now * Math.PI / 180;

                                    //         var cos = Math.cos( now ),
                                    //             sin = Math.sin( now );

                                    //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                                    //     }
                                    // });
                                }


                            });

                            $li.appendTo($queue);
                        }

                        // 负责view的销毁
                        function removeFile(file) {
                            var $li = $('#' + file.id);

                            delete percentages[file.id];
                            updateTotalProgress();
                            $li.off().find('.file-panel').off().end().remove();
                        }

                        function updateTotalProgress() {
                            var loaded = 0,
                                total = 0,
                                spans = $progress.children(),
                                percent;

                            $.each(percentages, function (k, v) {
                                total += v[0];
                                loaded += v[0] * v[1];
                            });

                            percent = total ? loaded / total : 0;


                            spans.eq(0).text(Math.round(percent * 100) + '%');
                            spans.eq(1).css('width', Math.round(percent * 100) + '%');
                            updateStatus();
                        }

                        function updateStatus() {
                            var text = '', stats;

                            if (state === 'ready') {
                                text = '选中' + fileCount + '张图片，共' +
                                    WebUploader.formatSize(fileSize) + '。';
                            } else if (state === 'confirm') {
                                stats = uploader.getStats();
                                if (stats.uploadFailNum) {
                                    text = '已成功上传' + stats.successNum + '张照片' +
                                        stats.uploadFailNum + '张照片上传失败'
                                }

                            } else {
                                stats = uploader.getStats();
                                text = '共' + fileCount + '张（' +
                                    WebUploader.formatSize(fileSize) +
                                    '），已上传' + stats.successNum + '张';

                                if (stats.uploadFailNum) {
                                    text += '，失败' + stats.uploadFailNum + '张';
                                }
                            }

                            $info.html(text);
                        }

                        function setState(val) {
                            var file, stats;

                            if (val === state) {
                                return;
                            }

                            $upload.removeClass('state-' + state);
                            $upload.addClass('state-' + val);
                            state = val;

                            switch (state) {
                                case 'pedding':
                                    $placeHolder.removeClass('element-invisible');
                                    $queue.hide();
                                    $statusBar.addClass('element-invisible');
                                    uploader.refresh();
                                    break;

                                case 'ready':
                                    $placeHolder.addClass('element-invisible');
                                    $('#filePicker2').removeClass('element-invisible');
                                    $queue.show();
                                    $statusBar.removeClass('element-invisible');
                                    uploader.refresh();
                                    break;

                                case 'uploading':
                                    $('#filePicker2').addClass('element-invisible');
                                    $progress.show();
                                    $upload.text('暂停上传');
                                    break;

                                case 'paused':
                                    $progress.show();
                                    $upload.text('继续上传');
                                    break;

                                case 'confirm':
                                    $progress.hide();
                                    $('#filePicker2').removeClass('element-invisible');
                                    $upload.text('开始上传');

                                    stats = uploader.getStats();
                                    if (stats.successNum && !stats.uploadFailNum) {
                                        setState('finish');
                                        return;
                                    }
                                    break;
                                case 'finish':
                                    stats = uploader.getStats();
                                    if (stats.successNum) {
                                        tip.on('上传完成', 1);
                                        setTimeout(function () {
                                            tip.off('上传完成', 1);
                                        }, 3000);
                                    } else {
                                        // 没有成功的图片，重设
                                        state = 'done';
                                        location.reload();
                                    }
                                    break;
                            }

                            updateStatus();
                        }

                        uploader.onUploadProgress = function (file, percentage) {
                            var $li = $('#' + file.id),
                                $percent = $li.find('.progress span');

                            $percent.css('width', percentage * 100 + '%');
                            percentages[file.id][1] = percentage;
                            updateTotalProgress();
                        };
                        uploader.onFileQueued = function (file) {
                            fileCount++;
                            fileSize += file.size;

                            if (fileCount === 1) {
                                $placeHolder.addClass('element-invisible');
                                $statusBar.show();
                            }

                            addFile(file);
                            setState('ready');
                            updateTotalProgress();
                        };

                        uploader.onFileDequeued = function (file) {
                            fileCount--;
                            fileSize -= file.size;

                            if (!fileCount) {
                                setState('pedding');
                            }

                            removeFile(file);
                            updateTotalProgress();

                        };

                        uploader.on('all', function (type) {
                            var stats;
                            switch (type) {
                                case 'uploadFinished':
                                    setState('confirm');
                                    break;

                                case 'startUpload':
                                    setState('uploading');
                                    break;

                                case 'stopUpload':
                                    setState('paused');
                                    break;

                            }
                        });
                        uploader.on('uploadSuccess', function (file, res) {
                            //todo 这里编写上传回调函数
                            if (!res.err) {
                                //上传真成功
                                //$('#' + file.id).addClass('upload-state-done');
                                //vm.images.push(res.d[0])
                                vm.success(file, res.d)
                            }
                            else {
                                var err = res.err

                                tip.on("上传失败：" + err);
                                setTimeout(function () {
                                    tip.off('上传完成', 1);
                                }, 200);
                                console.log(err)


                            }
//从队列中图片
                            uploader.removeFile(file, true);
                        });
                        uploader.onError = function (code) {
                            if (code == "F_DUPLICATE") {
                                tip.on('图片重复...', 0);
                                setTimeout(function () {
                                    tip.off('图片重复...', 0);
                                }, 3000);
                            }
                            else {
                                alert('Eroor: ' + code);
                            }

                        };

                        $upload.on('click', function () {
                            if ($(this).hasClass('disabled')) {
                                return false;
                            }

                            if (state === 'ready') {
                                uploader.upload();
                            } else if (state === 'paused') {
                                uploader.upload();
                            } else if (state === 'uploading') {
                                uploader.stop();
                            }
                        });

                        $info.on('click', '.retry', function () {
                            uploader.retry();
                        });

                        $info.on('click', '.ignore', function () {
                            alert('todo');
                        });

                        $upload.addClass('state-' + state);
                        updateTotalProgress();
                        vm.uploader = uploader
                    });
                }, 100)
            }
        },
        $ready: function (vm, elem) {
            vm.build()
        }
    })
})